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\section{Results}
\label{sec:results}




\begin{figure}[H]
\begin{center}


	\subfigure[Gene-Environment Interaction]{
\includegraphics{Figures/G-allgenoenvRR}
	}


\subfigure[Gene-Environment Interaction]{
\includegraphics{Figures/G-Allgenoenvsize}
}

	\subfigure[Environmental Effect]{
\includegraphics{Figures/G-allenvsize}
}
	\subfigure[Environmental Effect]{
\includegraphics{Figures/G-allenvRR}
}
 	\caption{Power for Detecting Gene-Environmental and Environmental Effect by Relative Risk and Cohort Size at 0.001 Significance Levels. Follow up times of 5 ( \protect\rule[3pt]{10pt}{1pt} ), 10 ( - - - ), 20 ( \textcolor{Gray}{\protect\rule[3pt]{10pt}{2pt}} ), 30 ( \ldots )   years.}
	\label{fig:genoenvsize}
	\end{center}
\end{figure}



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